| Old Jamestown to Mangualde | 4,213.34 mi (6,780.72 km) |
| Old Jamestown to Marco de Canavezes | 4,176.74 mi (6,721.81 km) |
| Old Jamestown to Marinha Grande | 4,186.30 mi (6,737.20 km) |
| Old Jamestown to Massama | 4,202.44 mi (6,763.17 km) |
| Old Jamestown to Matosinhos | 4,151.34 mi (6,680.94 km) |
| Old Jamestown to Mealhada | 4,188.48 mi (6,740.70 km) |
| Old Jamestown to Melgaco | 4,141.86 mi (6,665.68 km) |
| Old Jamestown to Melres | 4,168.91 mi (6,709.22 km) |
| Old Jamestown to Mira | 4,173.67 mi (6,716.88 km) |
| Old Jamestown to Miranda do Corvo | 4,203.07 mi (6,764.18 km) |
| Old Jamestown to Mirandela | 4,211.55 mi (6,777.83 km) |
| Old Jamestown to Mogadouro | 4,237.76 mi (6,820.01 km) |
| Old Jamestown to Moimenta da Beira | 4,208.01 mi (6,772.14 km) |
| Old Jamestown to Moita | 4,219.78 mi (6,791.08 km) |
| Old Jamestown to Moncao | 4,133.47 mi (6,652.17 km) |
